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我正在通过Boost bindings使用Umfpack。在大多数情况下,它在求解大尺寸线性方程时工作得非常快。但在某些情况下,我发现结果是 NaN。一开始我认为矩阵是奇异的。但后来我意识到事实并非如此,方程可以通过 Matlab mldivide(反斜杠)函数求解。那么 NaN 结果的原因是什么?C++
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